1530s, nyppell, "teat, duct-laden extremity of a mammalian breast," alteration of neble (1520s), probably diminutive of neb "bill, beak, snout" (see neb), hence, literally "a small projection." In reference to an artificial device on an infant's bottle, from 1875. A 16c.-17c. slang term for a woman's nipples was cherrilets.
实用例句
1. Strict adherence to nipple hygiene is essential during breast feeding.
在哺乳期要严格保持**的清洁卫生.来自辞典例句
2. The nipple is surrounded by pigmented circular skin called the areola.
**周围颜色较深的部位称为乳晕.来自辞典例句
3. Nipple inversion is quite common in normal breasts.
**内陷在正常**中也很常见.来自辞典例句
4. Feeding time should last as long as the same amount was fed by nipple.
喂的时间应与婴儿从奶头吸吮同等量所需要的时间相等.来自辞典例句
5. This unique form of breast cancer begins as a weeping eczematoid lesion of the nipple.
